Find: $(- 2) - (- 3) - (- 4) - (- 5) - (- 6) - 7$

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Solution

Given: $(- 2) - (- 3) - (- 4) - (- 5) - (- 6) - 7$
Convert the subtraction into addition
$(- 2) + 3 + 4 + 5 + 6 + (- 7)$
Add the negative numbers first
$(- 2) + 3 + 4 + 5 + 6 + (- 7)$ $= (- 9) + 3 + 4 + 5 + 6$
$= (- 9) + 18$ (add a negative and a positive number we have to subtract both numbers and put a sign of a greater number)
$= 9$
Hence, the answer is $9$ .

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